Malware Analysis Report

2024-10-10 08:02

Sample ID 240611-vekxsstfma
Target SolaraB.zip
SHA256 2510be907ec476e8375ac7b5431536ae9a32bf99fe77ab695a5100852b111b96
Tags
evasion themida trojan
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

2510be907ec476e8375ac7b5431536ae9a32bf99fe77ab695a5100852b111b96

Threat Level: Likely malicious

The file SolaraB.zip was found to be: Likely malicious.

Malicious Activity Summary

evasion themida trojan

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Checks BIOS information in registry

Themida packer

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Checks whether UAC is enabled

Legitimate hosting services abused for malware hosting/C2

Suspicious use of NtSetInformationThreadHideFromDebugger

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-11 16:54

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 16:54

Reported

2024-06-11 16:54

Platform

win10v2004-20240426-en

Max time kernel

15s

Max time network

15s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe

"C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe"

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe

"C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 203.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
N/A 127.0.0.1:63400 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp

Files

memory/536-0-0x000000007492E000-0x000000007492F000-memory.dmp

memory/536-1-0x0000000000E30000-0x0000000000E3A000-memory.dmp

memory/536-2-0x00000000056C0000-0x00000000056CA000-memory.dmp

memory/536-3-0x0000000074920000-0x00000000750D0000-memory.dmp

memory/536-5-0x00000000061B0000-0x00000000061C2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\get-intrinsic\.nycrc

MD5 d0104f79f0b4f03bbcd3b287fa04cf8c
SHA1 54f9d7adf8943cb07f821435bb269eb4ba40ccc2
SHA256 997785c50b0773e5e18bf15550fbf57823c634fefe623cd37b3c83696402ad0a
SHA512 daf9b5445cfc02397f398adfa0258f2489b70699dfec6ca7e5b85afe5671fdcabe59edee332f718f5e5778feb1e301778dffe93bb28c1c0914f669659bad39c6

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\hasown\.nycrc

MD5 c2ab942102236f987048d0d84d73d960
SHA1 95462172699187ac02eaec6074024b26e6d71cff
SHA256 948366fea3b423a46366326d0bb2e54b08abd1cf0b243678ba6625740c40da5a
SHA512 e36b20c16ceeb090750f3865efc8d7fd983ae4e8b41c30cc3865d2fd4925bf5902627e1f1ed46c0ff2453f076ef9de34be899ef57754b29cd158440071318479

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\has-proto\.eslintrc

MD5 c28b0fe9be6e306cc2ad30fe00e3db10
SHA1 af79c81bd61c9a937fca18425dd84cdf8317c8b9
SHA256 0694050195fc694c5846b0a2a66b437ac775da988f0a779c55fb892597f7f641
SHA512 e3eca17804522ffa4f41e836e76e397a310a20e8261a38115b67e8b644444153039d04198fb470f45be2997d2c7a72b15bd4771a02c741b3cbc072ea6ef432e9

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\vary\LICENSE

MD5 13babc4f212ce635d68da544339c962b
SHA1 4881ad2ec8eb2470a7049421047c6d076f48f1de
SHA256 bd47ce7b88c7759630d1e2b9fcfa170a0f1fde522be09e13fb1581a79d090400
SHA512 40e30174433408e0e2ed46d24373b12def47f545d9183b7bce28d4ddd8c8bb528075c7f20e118f37661db9f1bba358999d81a14425eb3e0a4a20865dfcb53182

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe

MD5 15cdabcecc4ae0ec3253b1625156b0a7
SHA1 fa1b2c6a2be53578ef278706cdee6f725e00b003
SHA256 6dbcc562d627628e45187afbd2421be88797e20e36910393a883e361973da553
SHA512 c9a1740bf5fed7cbc6d91ab92222b178fe4a8ab2d75dd8f18d827046bab88d7632b0751e953e77e29aaf9a9bf390697e94f23e172cfe034a4263bcf7c7149106

memory/536-1472-0x0000000074920000-0x00000000750D0000-memory.dmp

memory/4572-1471-0x00007FFD30693000-0x00007FFD30695000-memory.dmp

memory/4572-1473-0x000001A052770000-0x000001A05278A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Wpf.Ui.dll

MD5 aead90ab96e2853f59be27c4ec1e4853
SHA1 43cdedde26488d3209e17efff9a51e1f944eb35f
SHA256 46cfbe804b29c500ebc0b39372e64c4c8b4f7a8e9b220b5f26a9adf42fcb2aed
SHA512 f5044f2ee63906287460b9adabfcf3c93c60b51c86549e33474c4d7f81c4f86cd03cd611df94de31804c53006977874b8deb67c4bf9ea1c2b70c459b3a44b38d

memory/4572-1475-0x000001A06EBA0000-0x000001A06F0DC000-memory.dmp

memory/4572-1476-0x00007FFD30690000-0x00007FFD31151000-memory.dmp

memory/4572-1477-0x000001A06E660000-0x000001A06E71A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Wpf.dll

MD5 34ec990ed346ec6a4f14841b12280c20
SHA1 6587164274a1ae7f47bdb9d71d066b83241576f0
SHA256 1e987b22cd011e4396a0805c73539586b67df172df75e3dded16a77d31850409
SHA512 b565015ca4b11b79ecbc8127f1fd40c986948050f1caefdd371d34ed2136af0aabf100863dc6fd16d67e3751d44ee13835ea9bf981ac0238165749c4987d1ae0

memory/4572-1479-0x000001A0544F0000-0x000001A0544FE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Core.dll

MD5 851fee9a41856b588847cf8272645f58
SHA1 ee185a1ff257c86eb19d30a191bf0695d5ac72a1
SHA256 5e7faee6b8230ca3b97ce9542b914db3abbbd1cb14fd95a39497aaad4c1094ca
SHA512 cf5c70984cf33e12cf57116da1f282a5bd6433c570831c185253d13463b0b9a0b9387d4d1bf4dddab3292a5d9ba96d66b6812e9d7ebc5eb35cb96eea2741348f

memory/4572-1481-0x000001A06CE80000-0x000001A06CEFE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\WebView2Loader.dll

MD5 a0bd0d1a66e7c7f1d97aedecdafb933f
SHA1 dd109ac34beb8289030e4ec0a026297b793f64a3
SHA256 79d7e45f8631e8d2541d01bfb5a49a3a090be72b3d465389a2d684680fee2e36
SHA512 2a50ae5c7234a44b29f82ebc2e3cfed37bf69294eb00b2dc8905c61259975b2f3a059c67aeab862f002752454d195f7191d9b82b056f6ef22d6e1b0bb3673d50

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.dll

MD5 8518e81caa4b5a961656b687300b64f3
SHA1 3079b0a84cca1f8b270a331c68cf0c134f42aedf
SHA256 4179c99032b9698a74a0b395541b8a7124531ecc053428fae0916a02b78364e1
SHA512 20a99e88e1657ca41ba7ecf31e4a1fff56b721dfa55b7a10531715bb674ab11abfa08c5e7d53ce9cef78cf63bcc3248e8131ca5674d8169d7ac4ac8f0a1385bf

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\vcruntime140.dll

MD5 7a2b8cfcd543f6e4ebca43162b67d610
SHA1 c1c45a326249bf0ccd2be2fbd412f1a62fb67024
SHA256 7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f
SHA512 e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\zlib1.dll

MD5 75365924730b0b2c1a6ee9028ef07685
SHA1 a10687c37deb2ce5422140b541a64ac15534250f
SHA256 945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b
SHA512 c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1

memory/4572-1492-0x0000000180000000-0x0000000180B19000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\libcurl.dll

MD5 e31f5136d91bad0fcbce053aac798a30
SHA1 ee785d2546aec4803bcae08cdebfd5d168c42337
SHA256 ee94e2201870536522047e6d7fe7b903a63cd2e13e20c8fffc86d0e95361e671
SHA512 a1543eb1d10d25efb44f9eaa0673c82bfac5173055d04c0f3be4792984635a7c774df57a8e289f840627754a4e595b855d299070d469e0f1e637c3f35274abe6

memory/4572-1494-0x0000000180000000-0x0000000180B19000-memory.dmp

memory/4572-1493-0x0000000180000000-0x0000000180B19000-memory.dmp

memory/4572-1495-0x0000000180000000-0x0000000180B19000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\bin\path.txt

MD5 6b09afc61af8884f2fc6204922e970be
SHA1 fe3da40f27e8dc2b8e2392c9590666982fff3398
SHA256 f99a87a0c9006940f0d9efa1331d253dcf56016c82f4e266b507c303bb8493a6
SHA512 69ac27dbd690d1919a5da98e5f427328147c18a338596a0cf7ccb2cd09594da388fc4bb5df660bb4ca5a630f3ffc3ee3783b24c262683d2c5992db2f1abca8ea

memory/4572-1497-0x000001A06EA80000-0x000001A06EA88000-memory.dmp

memory/4572-1498-0x000001A06EB60000-0x000001A06EB98000-memory.dmp

memory/4572-1499-0x000001A06EB30000-0x000001A06EB3E000-memory.dmp

memory/4572-1501-0x00007FFD31580000-0x00007FFD315A4000-memory.dmp

memory/4572-1500-0x0000000180000000-0x0000000180B19000-memory.dmp